А) 3,2x - 1,5 = 1,7x B) 2 - (0,9x - 1,3) = 1,3x C) - (3,3x + 1,2) - (0,7x + 1,6) = 0 D) - (4,1x + 2,5) - (2,3x + 3,9) = 1,6x E) (3,6x + 2,5) - (1,8x + 2,3) = 1,6x
А) 3,2x - 1,5 = 1,7x B) 2 - (0,9x - 1,3) = 1,3x C) - (3,3x + 1,2) - (0,7x + 1,6) = 0 D) - (4,1x + 2,5) - (2,3x + 3,9) = 1,6x E) (3,6x + 2,5) - (1,8x + 2,3) = 1,6x
Ответ(ы) на вопрос:
3.2х-1.5=1.7х 3.2х-1.7х=1.5 1.5х=1.5 х=1.5:1.5 х=1 2-(0.9х-1.3)=1.3х 2-0.9х+1.3=1.3х -0.9х-1.3х=-1.3-2 -2.2х=-3.3 х=-3.3:(-2.2) х=1.5 -(3.3х+1.2)-(0.7х+1.6)=0 -3.3х-1.2-0.7х-1.6=0 -3.3х-0.7х=1.6+1.2 -4х=2.8 х=2.8:(-4) х=-0.7 -(4.1х+2.5)-(2.3х+3.9)=1.6х -4.1х-2.5-2.3х-3.9=1.6х -4.1х-2.3х-1.6х=3.9+2.5 -8х=6.4 х=6.4:(-8) х=-0.8 (3.6х+2.5)-(1.8х+2.3)=1.6х 3.6х+2.5-1.8х-2.3=1.6х 3.6х-1.8х-1.6х=2.3-2.5 0.2х=-0.2 х=-0.2:0.2 х=-1
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